Percolation in Radioactive-Waste Glass Melt with RuO2

被引：2

作者：

Ogawa, Toru ^{[1
]}

机构：

[1] Japan Atom Energy Agcy, Tokai, Ibaraki 3191195, Japan

来源：

JOURNAL OF THE AMERICAN CERAMIC SOCIETY | 2010年 / 93卷 / 09期

关键词：

CONDUCTIVITY; COMPOSITES; BEHAVIOR;

D O I：

10.1111/j.1551-2916.2010.03818.x

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Molten glass containing ruthenium dioxide (RuO2) particles develops electronic conduction, which leads to an unstable operation of the Joule-heated melter for the radioactive waste vitrification. The percolation behavior of molten glass-RuO2 composites was examined by noting their hierarchical formation process. A low percolation threshold < 1 vol% was reasonably reproduced by assuming the packing of "soft" RuO2 rods in the primary aggregate, and by applying Bruggeman's effective medium approximation for the higher aggregates and their clusters.

引用

页码：2487 / 2490

页数：4

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